NO LOW-BEAM HEADLIGHTS

I have a headlight issue. Dashboard, parking lights, rear lights all run. Passing high-beam works when stalk is pulled. Bulbs are known good. No power to headlight bulbs w/switch on. Cannot find headlight relay to test. Have Chilton's manual, but wiring diagram does not match what I see on the car.
Have taken off cover for headlight switch on steering column, but that is as far as I got.